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Looking at most cost effective options here. Coming with a 06 E90 with blueooth Prep. If I was to go CIC, I would need the usual things plus combox retrofit and ftz for bluetooth speaker (rather OEM look).
NBT EVO retrofit, I can avoid cost of combox. However, would I still need to do the OBD ENET rewiring? Or do the retrofit harnesses avoid doing this? I've been seeing recent write-ups not mentioning this part.
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